EPDM Roofing 101: Overview Of Materials
Written by
Leroy Whitt
When it comes to roofing solutions for commercial properties, durability, cost-effectiveness, and reliability are top priorities. With the variety of roofing systems available today, finding one that meets all your needs can feel overwhelming. That’s why more and more commercial property owners are turning to EPDM roofing. Known for its exceptional performance and longevity, EPDM (Ethylene Propylene Diene Monomer) has been a trusted option for decades within the industry.
If you’re managing a commercial building and considering a roofing upgrade or replacement, this blog will cover everything you need to know about EPDM roofing, from:
- Its benefits
- Installation process
- Maintenance tips
- Why it’s the superior option
What is EPDM Roofing?
EPDM is a synthetic rubber membrane known for its durability and versatility. It’s primarily used on flat and low-slope rooftops, making it especially popular for commercial buildings such as warehouses, office spaces, retail centers, and industrial facilities. EPDM roofing is comprised of a mixture of synthetic rubber and other materials, creating a water-resistant and weatherproof roofing material that can withstand the challenges of harsh climates.
The roofing system typically comes in large, pre-manufactured sheets ranging from 7.5 to 50 feet wide, with a thickness of 45 to 90 mils. These sheets are installed and adhered using methods such as ballasting, adhesives, or mechanical fasteners, dependent on your building’s needs and circumstances.
The Benefits of EPDM Roofing
EPDM roofing has gained its trusted reputation due to several standout advantages:
💪 Exceptional Durability
EPDM can last upwards of 30 years or more with proper installation and maintenance. The material is highly resistant to extreme weather conditions, including hail, UV radiation, wind, and temperature fluctuations. Unlike other roofing materials that may crack, warp, or degrade, EPDM maintains its integrity over time, even under the most demanding conditions.
💵 Cost-Effectiveness
EPDM roofing is one of the most cost-efficient solutions for commercial properties. The installation costs are low compared to other roofing systems, and its long lifespan reduces the frequency of costly repairs or replacements. Additionally, EPDM’s energy-saving properties can help lower heating and cooling costs for large buildings.
☔️ Water Resistance
Because its synthetic rubber material is highly flexible, EPDM provides outstanding water resistance. This makes it a great choice for flat or low-slope roofs prone to water pooling. The seamless application process also ensures there are fewer vulnerabilities for leaks to develop.
🌎 Eco-Friendly Option
If sustainability is important to you, EPDM is a smart choice. The membrane is often made of recyclable materials and can be reused when your roof eventually reaches the end of its life cycle. Manufacturers are also increasingly developing EPDM with enhanced reflectivity to help combat urban heat islands and reduce energy consumption.
👌 Low Maintenance
After installation, EPDM requires minimal maintenance to perform optimally. Routine inspections and minor upkeep are typically enough to keep an EPDM roof in excellent condition, reducing the hassle and cost of long-term roof care.
🧰 Flexible Installation Options
EPDM roofing systems can be installed using a variety of techniques, including fully adhered, mechanically fastened, or ballasted applications, making it adaptable to different roof configurations. It can also conform to irregular roof shapes and penetrate obstacles like HVAC units and skylights, unlike other roofing materials.
How is EPDM Roofing Installed?
Installing an EPDM roof is a specialized process that should be handled by experienced professionals like Whitt’s Quality Roofing. Here’s an overview of what the installation process generally involves:
- Roof Preparation: The existing roof surface is cleaned and prepared to ensure proper adhesion of the EPDM sheets. If the roof has old or failing materials, they are removed, and any damage to the decking is repaired.
- Measurement and Customization: Measurements are taken to determine the correct size and shape of the EPDM sheets needed. The membrane can often be custom-fabricated to minimize seams and reduce vulnerability to leaks.
- EPDM Sheet Application: The EPDM membrane is applied to the roof using one of three methods:
- Fully Adhered – Sheets are glued directly to the roof surface.
- Mechanically Fastened – Sheets are secured with fasteners and plates along the seams.
- Ballasted – Sheets are held in place by heavy materials such as gravel or pavers.
- Edge Sealing and Detailing: Once the roof is covered, the edges and seams are carefully sealed to ensure no water can seep through. Flashing is also applied around protrusions like vents, drains, and HVAC equipment.
- Final Inspection: After installation, the roofing system is thoroughly inspected to ensure proper adhesion, sealing, and alignment. Professional installers will also confirm that the roof meets all warranty and manufacturer requirements.
Regular Maintenance for EPDM Roofing
While EPDM roofs require minimal maintenance, regular upkeep ensures the longevity and performance of the system. Here are some tips for maintaining an EPDM roof:
Schedule Routine Inspections
Aim to have a professional roofing contractor inspect your roof at least twice a year—once in the spring and once in the fall. Inspections should also be performed after severe weather events to identify any damage or areas of concern.
Clean Debris Regularly
Keep your roof free of debris such as leaves, branches, and dirt, which can trap moisture and lead to mold or drainage problems. Debris removal can also help prevent deterioration of the surface.
Monitor for Damage
Look for signs of wear or damage, such as cracks, punctures, or lifting seams, and arrange for prompt repairs when necessary.
Inspect Drainage Systems
Ensure that gutters, downspouts, and drainage areas remain clear to prevent water from pooling on your roof. Pooling water can damage the roof over time, even with EPDM’s water resistance.
Address Repairs Promptly
If repairs are needed, they should be conducted by a professional roofing contractor with expertise in EPDM systems. Attempting a DIY repair may void the warranty or create further complications.
EPDM Roofing vs. Other Commercial Roofing Options
When choosing a roofing material, it’s important to compare all of your options. Here’s how EPDM stacks up against two other popular commercial roofing systems:
EPDM vs. TPO Roofing
- Durability – Both materials are durable, but EPDM tends to last longer in extreme weather conditions.
- Cost – EPDM is typically more affordable, although TPO’s reflective surface may reduce cooling costs in especially hot climates.
- Flexibility – EPDM is more flexible and better suited for roofs with obstacles or irregular features.
EPDM vs. PVC Roofing
- Durability – PVC is highly durable and resistant to chemicals, but it is more prone to cracking in cold weather compared to EPDM.
- Cost – PVC tends to be the more expensive option upfront, while EPDM offers a cost-effective solution with fewer material expenses.
- Ease of Repair – EPDM is easier to repair than PVC, which often requires specialized training and equipment.
Invest In An EPDM Roofing Membrane From Whitt’s!
EPDM roofing stands as one of the most reliable solutions for commercial properties, offering unmatched durability, cost savings, and environmental benefits. Whether you’re looking to replace an aging roof or install a new one, EPDM provides a versatile and proven option that will serve your property for decades.
Don’t leave your roofing needs to chance. Partner with Whitt’s Quality Roofing to ensure the highest level of expertise, service, and performance. Contact us today for a consultation and discover how EPDM roofing can benefit your building.